function comma2point(File) 
% Generate a new file named Oldfilename_Modified.ending. In the new File all 
% ',' are changed to '.' Needs a full datapath and filename as input. 
    
    Name=textscan(File,'%s%s','delimiter','.'); 
    NewFile=strcat(Name{1}, '_ohneKomma.',Name{2}); 
    copyfile(File, NewFile{1}); 
    file    = memmapfile(NewFile{1},'Writable',true); 
    comma   = uint8(','); 
    point   = uint8('.'); 
    file.Data(( file.Data==comma)' ) = point; 
    %delete(file) 
end
